General

  • Target

    JaffaCakes118_edc4ee12b5161c18444dc9a2e52e85f9

  • Size

    320KB

  • Sample

    250504-x1xjtsdp7y

  • MD5

    edc4ee12b5161c18444dc9a2e52e85f9

  • SHA1

    f8a9a8109b64bdf3dce3efb199452a59cb54d823

  • SHA256

    2f05a50579305fd9bb408b07ca12e7031aa9f4915f791a6b81dcf6ee6ec00b40

  • SHA512

    4b3145816cd13aacf8fda87cda32dba9fff426dd5a58867929586c489b90f4f23013835b03859c0804d76b1ba86c79b2e3b3c945b39be46648f2c70a84864349

  • SSDEEP

    6144:zTwZo1IV3puaibGKFHi0mofhaH05kipz016580bHFbl86JQPDHDdx/QtqR:3XgvmzFHi0mo5aH0qMzd5807FRPJQPDV

Malware Config

Targets

    • Target

      JaffaCakes118_edc4ee12b5161c18444dc9a2e52e85f9

    • Size

      320KB

    • MD5

      edc4ee12b5161c18444dc9a2e52e85f9

    • SHA1

      f8a9a8109b64bdf3dce3efb199452a59cb54d823

    • SHA256

      2f05a50579305fd9bb408b07ca12e7031aa9f4915f791a6b81dcf6ee6ec00b40

    • SHA512

      4b3145816cd13aacf8fda87cda32dba9fff426dd5a58867929586c489b90f4f23013835b03859c0804d76b1ba86c79b2e3b3c945b39be46648f2c70a84864349

    • SSDEEP

      6144:zTwZo1IV3puaibGKFHi0mofhaH05kipz016580bHFbl86JQPDHDdx/QtqR:3XgvmzFHi0mo5aH0qMzd5807FRPJQPDV

    • Modifies WinLogon for persistence

    • Pykspa

      Pykspa is a worm spreads via Skype uses DGA and it's written in C++.

    • Pykspa family

    • Detect Pykspa worm

    • Adds policy Run key to start application

    • Disables RegEdit via registry modification

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Impair Defenses: Safe Mode Boot

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Hijack Execution Flow: Executable Installer File Permissions Weakness

      Possible Turn off User Account Control's privilege elevation for standard users.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v16

Tasks